Disk grain-drill.



W. F. HUYT. DISK @BAIN DRILL.

(Application led Apr. 3, 1900.-

(No Model.)

Patentedlan. vl, I90I.

Wijsman Srafres Parent* keine,

WILL F. IIOYT, CF DCVVAGIAC, MICHIGAN, ASSIGNCR TO THE DOVVAGIAC MANUFACTURING COMPANY, Oli" SAME'PLACE.

DiSK 'GRAlN-DRILL.

SPECIFICATION forming part of Letters' Patent No. 664,867', dated January l, 1901.

Application filed April 3, 1900- Serial No. 11,394. (No model.)

To @ZZ whom 15m/wy concern:

Be it known that I, I/VlLL F. HOYT, a citizen of the United States, residing at thevillage of Dowagiac, in the county of Cass and State of Michigan, have invented certain new and useful Improvements in Disk Grain-Drills. of which the following is a specication.

This invention relates to improvements in disk grain-drills, and more particularly to disk grain-drills having disks that are double convex.

The objects of the invention are, nrst, to provide a more compact and efficient structure than has heretofore been accomplished in disk grain-drills; second, to provide, in this style of grain-drills,an improved arrangement of parts for depositing the 'grain in the fur-rows, and, third, to provide improvements in the details of construction of the disk.

Further objects will appear in the detailed description to follow.

I accomplish the objects of my invention by thedevices and means described in this specification.

The invention is clearly deiined,and pointed out in the claims.

A structure embodying the features of my invention is clearly illustrated in the accompanying drawings, forming a part of this specification, in Which- Figure lis a side elevation of a grain-drill disk, the disk-frame, its draw-bar connec- .ions, and connected parts. Fig. 2 is a plan View of the structure appearing in Fig. l. Fig. 3 is a' detail View of the disk and parts from the opposite side of that appearing in Fig. l.

Fig. 4 is an enlarged detail vertical sectional view taken on line 4 4 of Fig. l looking in the direction ofthe little arrows at the ends of the section-lines. Fig. 5 is a detail view 'of the cast center E" of one of the halves of the disk, showing the general arrangement of the centers and their connect-ion to the halves of the disk.

In the drawings similar letters of reference refer to similar parts throughout the several views.

Referring to the lettered parts of the drawings, A represents-a transverse bar or other pivotal connection carried by the main frame of the grain-drill. B is the draw-bar connected therewith bv a bracket A'.

C C are the boot and disk-frame, which are made integral and carry a suitable jourual C, which fits within the journal-bearing Within the disk. The disk is made up of two concavo-convex plates D D', having their concave sides itted together to form a sharp cutting edge tapering at both sides and forming the complete double curve. At the center of one of these halves a center plate El is secured, having a central hub E' Aextending axially through the disk. This center plate E is secured by rivetsA to the inner side of the half D of the disk.- On the inner side of the opposite half Dis secured 'a center plate E'" by suitable rivets, -the same being depressed slightly inward and havinga flange or shoulder d at the center. The outside of the hub E is screw-threaded, and a broad uut E" screws onto the same and engages the shoulder d, of the center plate E'" and so clamps the two halves D D of the disk together.

The journal C" tits within the journal-bearing of the'hub E'. and is retained in position by a boltF, having a nut or washers, with a Cotter-pin F', permitting the disk to revolve Qnthe journal-bearing. I prefer to construct this bolt andrconnection like that appearing in my Patent No. 626,024, issued May 30, 1899, although it is obvious that other connections might be employed with this particular form of disk. The usual oil-cup I is provided for supplying oil to the bearing.

The boot C extends to the rear side of the disk and back of the bulge ofthe same at one side. A thin blade or plate C" extends down from the boot to clean the disk and also to assist in opening the furrow and retaining itv open until the grain falls into the same. Any usual covering means can be provided for use with this disk. I have shown the eye for connecting chain-coverer and also other eyes for connecting press-wheels where such may be desired. I desire to state that this arrangement of the boot'and disk-frame in counection with the disk of this form is of great advantage, because all side thrust of the disk is avoided and the strain on the frame of the IOO as formed of cast metal, might baforgings or stampings. I do not wish to be confined to any particular method of producing these parts.

I also desire to state that while the par. ticular form of double-convex disk is especially adapted for use in these relations any form of double-convex disk can be used ir relation with the disk-frame, boot, and furrow-opening plate which I have here illustrated.

I also desire to remark that while the drawbar is especially well adapted for'use in thisV connection that also can be varied, particularly with this device, as Very little lateral strain comes upon it. The particular drawbar construction here illustrated is made the subject-matter of my patent application, Serial No. 8,235, filed March l0, 1900, for improvements in disk grain-drills.

. Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent, is- 1 1. In a graindrill,the combination of a suitable draW-bar havinga pivotal connection at itsyforward end; a disk-fra me C with a boot C at its rear; and a journal C projecting to one side thereof; a double-convex disk revo luble' on said journal with its cutting edge in the line 0f draft ofthe machine; furrow-opening plate C arranged below the disk-frame C at theside of the disk and to the rear of its bulging portion and in front ot' said boot and substantially in contact with said disk and coacting therewith to form a furrow, substantially as described.

2. In a grain-drill, the combination of a disk-frame;.connections therefor to the main frame of the grain-drill; a .double-convex disk journaled to said disk-frame having its cutting edge in the line ofvdraft of said machine; and a boot with a furrow-opening plate arranged to one side of said disk toward its rear and back of its bulging portion to coact with said disk in opening the furrow and depositing the grain, for the purpose specified.

3. In a grain-drill, l the combination of a disk-frame; a double-convex disk journaled to said disk-frame having its cutting edge in the line of draft of said machine; and a boot arranged to one side of said disk toward its rear and back of its bulging portion, coacting therewith, for the purpose specified.

4. In a grain-drill, the combination of the disk frame having a conical journal C thereon; a double-convex disk made up of halves D, D, havinga central plate E to one side with a hub E extending axially through the disk; a plate E'" within the half D sedisk and journal acting substantially as described for the pure cured thereto and having a shoulder d; a screw-threaded nut E" of the hub E to clamp the halves of the disk together; va bolt F haviuga square head engaging a square perforation through the end of the hub E; and an adjustable nut on the opposite end of said bolt to retain the revolubly together, all co.-

pose speciied.-

5. In a grain-drill, the combination of a to engage the outside disk-frame havinga journal thereon; a double-convex disk made up of halves D, D'; a central platel riveted to one of said halves with a hub extending through to the opposite side of the disk; .a plate secured within the opposite half surrounding the hub; and Y a screw-threaded nut to engage the outside of said hub and clamp the halves of the disk together; `and a bolt securing the hub and Y journal revolubly together, for the purpose specifiedr.- v y 6. In a grain-drill, the combination of a disk-frame having a journal thereon; a .dou-

ble-convex .disk made up of halves D, D'; a'

central plate riveted to one of said halves with a hub extending through-to the opposite side of the disk; a plate secured within the opposite half surrounding the hub; and

a screw-threadednut to engage the outside of said hub and clamp the halves of the disk together; and means for retaining the said hub on the journal, `as specified.

7. In a graindrill, the combination of a disk-frame bearing a conical journal; a double-convex disk made up of halves; a hub, closed lat one end,secured to one halt' having a bearing to tit the journal; means for clamping the opposite half of the disk to said hub; and a bolt through the closed end of the hub and through the journal, securing. the same adjustably together, for the purpose speci-'v' fied.

8. In a grain-drill, the combination of a gocdisk-frame bearing a journal; a dou'ble-convex disk made up of halves; Ya hub, closed at one end, secured to one halt having a bearing to fit the journal; means forclamping the opposite half of the disk to'said hub; and a bolt through the closed endof the hub and through the journal, securing the same revo, lubly together, for the purpose specified.

In witness whereof Ihave hereunto set my hand and seal in the presence of two witnesses.

WILL F. HOYTt [L.

Witnesses:

O. SCHMALZRIED, E. S. McMAsTER.

IIO 

